CVE-2026-25275 Buffer Over-read in WLAN Firmware

High 7.5 Published Updated

Attackers can cause a transient denial of service in Qualcomm Snapdragon WLAN firmware by sending authentication frames with invalid FILS header lengths.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-25275?

CVE-2026-25275 is a high-severity denial of service vulnerability in Qualcomm Aqt1000 Firmware, published on 17 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Transient DOS when processing authentication frames with invalid FILS information element header lengths.

Weakness: CWE-126

Which versions are affected by CVE-2026-25275?

It affects 376 products.

Products include Qualcomm 5g Fixed Wireless Access Platform Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm C110100 Firmware, Qualcomm Cologne Firmware and 370 more.

How do I fix CVE-2026-25275?

No fix has been published for CVE-2026-25275 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-25275 being exploited?

There is no known exploitation of CVE-2026-25275 in the wild and no public exploit code.

All Qualcomm Aqt1000 Firmware vulnerabilities

Sources

Also known as GHSA-r23j-xxqv-w996.

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